Modeling Utilities
Learn how to model data with defineValues, defineGetters, and defineSetters
These utilities are a shorthand for adding properties to objects. They can be useful for data modeling. Arrow functions are not supported.
defineValues
ts
defineValues(record, object)For adding configurable, non-enumerable properties to items.
defineGetters
For adding configurable, non-enumerable getters to items.
ts
defineGetters(record, objectOfFunctions)defineSetters
ts
defineSetters(record, objectOfFunctions)For adding configurable, non-enumerable setters to items.
Example Associations
ts
import { defineGetters, defineSetters } from 'feathers-pinia'
export const api = createPiniaClient(feathersClient, {
pinia,
idField: '_id',
whitelist: ['$regex'],
paramsForServer: [],
services: {
users: {
idField: 'id',
},
contacts: {
whitelist: ['$test'],
setupInstance(data: any) {
const withDefaults = useInstanceDefaults({ name: '', age: 0 }, data)
return withDefaults
},
},
tasks: {
skipGetIfExists: true,
},
authors: {
setupInstance(author, { app }) {
const withDefaults = useInstanceDefaults({ setInstanceRan: false }, author)
const withAssociations = defineGetters(withDefaults, {
posts(this: Authors) {
return app.service('posts').useFind({ query: { authorId: this.id } })
},
comments(this: Authors) {
return app.service('comments').useFind({ query: { authorId: this.id } })
},
})
const withAssociationSetters = defineSetters(withAssociations, {
posts(this: Posts, post: Posts) {
author.setInstanceRan = true
if (post.id && !this.authorIds.includes(post.id)) post.authorIds.push(post.id)
},
})
return withAssociationSetters
},
},
posts: {
setupInstance(post, { app }) {
const withDefaults = useInstanceDefaults({ authorIds: [] }, post)
const withAssociations = defineGetters(withDefaults, {
authors(this: Posts) {
return app.service('authors').useFind({ query: { id: { $in: this.authorIds } } })
},
comments(this: Posts) {
return app.service('comments').useFind({ query: { postId: this.id } })
},
})
return withAssociations
},
},
comments: {
setupInstance(comment, { app }) {
const withDefaults = useInstanceDefaults({ description: '', isComplete: false }, comment)
const withAssociations = defineGetters(withDefaults, {
post(this: Comments) {
return app.service('posts').useGet(this.postId)
},
author(this: Comments) {
return app.service('authors').useGet(this.authorId)
},
})
return withAssociations
},
},
},
})